Finding the Third Proportional to 1,280,376 and 2,801,808

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280,376 : 2,801,808 = 2,801,808 : x
2. Step 2: Convert to fraction form
   1,280,376/2,801,808 = 2,801,808/x
3. Step 3: Cross multiply
   1,280,376x = 2,801,808 × 2,801,808
4. Step 4: Simplify right side
   1,280,376x = 7,850,128,068,864
5. Step 5: Solve for x
   x = 7,850,128,068,864/1,280,376
6. Step 6: Final answer
   x = 6,131,111.54